It's not clear that the crashes have been people who misunderstood the capability of the system. To me, it seems more likely that they got lazy and put a bit too much faith into it.
I'm not saying it's not a problem, just that it's a lot more complicated than what Tesla decided to name the feature. I think the accidents that have occurred would have occurred regardless of what they named it.
Human factors are a thing. And it's a little scary that some guys who build rockets and plan Mars missions on the side don't seem to understand that.